Actually, there is very little snow in the run itself. It has wire over the top, which had some leaves/pine needles stuck in it. So, the snow accumulated there. I am watching them right now, pecking around in there. They spend a lot of time in the adjacent area under the coop. My question was whether they could be let out of the run to roam the yard, or if they even would when there is snow. My husband and I were talking about where the natural habitat is for wild chickens and if it is a more tropical climate, where they wouldn't ordinarily be exposed to snow. I remember visiting Key West and being pleasantly surprised to find chickens running around there! Thanks for responding to my post!